www.atos.com

Solenoid directional valves type DHI and DHUdirect operated, ISO 4401 size 06

Table E010-16/E

DHI and DHU are spool type, three orfour way, two or three position directoperated solenoid valves designed tooperate in oil hydraulic systems.They are operated by wet and pressuresealed solenoid � with manual overri-de and with coils certified accordingthe North American standard CURUS:• DHI for AC and DC supply;• DHU for DC supply with improved

performances.Moving parts are protected, lubricatedand cushioned in oil.Shell-moulding casting � machined bytransfer lines and then cleaned by ther-mal deburring.Optimized flow paths largely cored withextrawide channels to tank for lowpressure drops.Interchangeable spools � available ina wide variety of configurations.DHU valves can be supplied withoptional devices for control of swit-ching times.Standard electric/electronic connectors� able to satisfy the requirements ofmodern machines for electric interfa-ces characteristics.Coils are fully encapsulated (class H)and are easily replaceable without aidof tools.Rugged execution suitable for outdooruse.Surface mounting ISO 4401 size 06.Max flow up to 60 l/min.Max pressure: 350 bar.

DHI – 0

Directional control valves size 06DHI-0 = AC and DC supplyDHU-0 = for DC supply

Valve configuration, see table �61 = single solenoid, center plus external position,

spring centered63 = single solenoid, 2 external positions, spring offset67 = single solenoid, center plus external position,

spring offset70 = double solenoid, 2 external positions, without

springs71 = double solenoid, 3 positions, spring centered75 = double solenoid, 2 external positions, with detent77 = double solenoid, center plus external position,

without springsOther configurations are available on request.

Spool type, see section �.

Series number

/A **63 /*1 MODEL CODE

E010

1/2

Options, see note 1 at section �.

X 24 DC

Voltage code, see section �00 = valve without coils

-

X = without connectorSee note 2 at section � for available connec-tors, to be ordered separatelyCoils with special connectors, see section XJ = AMP Junior Timer connectorXK= Deutsch connector (only for DHU)XS= Lead Wire connection

9

DHI-0631/2

DHU-0711

connector

connector

..

.

� �� �

� �� �

.

. ..

.

21

21

0 21

01

71

63

61

75

67/A

63/A

61/A

67

2 CONFIGURATIONS and SPOOLS

0

8

49

1

90

16

2

09

17

3

91

58

4

19

5

93

6

39

7

94

1/9

0 2

0 2

01

21

0/2

1/2

2/2

01 0 201 0 201 0 201 0 201 0 2

Configurations Spools Configurations Spools

Seals material:omit for NBR (mineraloil & water glycol)PE = FPM

2170

2077

only for configuration 71

4.1 Coils characteristics

4 NOTES

1 OptionsA = Solenoid mounted at side of port B (only for single solenoid valves). In standard versions, solenoid is mounted at side of port A.WP = prolonged manual override protected by rubber cap - see section .SP-WPD/H = manual override with detent, to be ordered separately, see tab. K150L1, L2, L3 = device for switching time control, installed in the valve solenoid (only for DHU models).

For spools 4 and 4/8 only device L3 is available.F * = with proximity switch for monitoring spool position: see tab. E110.MV, MO = auxiliary hand lever positioned vertically (MV) or horizontally (MO). For available configuration and dimensions see table E138.

2 Type of electric/electronic connector DIN 43650, to be ordered separately666 = standard connector IP-65, suitable for direct connection to electric supply source.667 = as 666, but with built-in signal led.669 = with built-in rectifier bridge for supplying DC coils by alternate current (AC 110V and 230V - Imax 1A).E-SD = electronic connector which eliminates electric disturbances when solenoid valves are de-energized.

3 Spools- spools type 0 and 3 are also available as 0/1 and 3/1 with restricted oil passages in central position, from user ports to tank.- spools type 1, 4 and 5 are also available as 1/1, 4/8, 5/1 and 58/1. They are properly shaped to reduce water-hammer shocks during the swiching.- spools type 1, 3, 8 and 1/2 are available as 1P, 3P, 8P and 1/2P to limit valve internal leakages.- spool type 1/9 has closed center in rest position but it avoids the pressurization of A and B ports due to the internal leakages.- Other types of spools can be supplied on request.

12

(1) Coil can be supplied also with 60 Hz of voltage frequency: in this case the performances are reduced by 10 ÷15% and the power consumption is 55 VA.(2) Average values based on tests preformed at nominal hydraulic condition and ambient/coil temperature of 20°C.(3) When solenoid is energized, the inrush current is approx 3 times the holding current. Inrush current values correspond to a power consumption of

about 150 VA.

Insulation class H (180°C) Due to the occuring surface temperatures of the solenoid coils, the European standardsEN ISO 13732-1 and EN ISO 4413 must be taken into account

Connector protection degree DIN 43650 IP 65Relative duty factor 100%Supply voltage and frequency See electric feature �Supply voltage tolerance ± 10%Certification CURUS

Assembly position / location

Subplate surface finishing Roughness index Ra 0,4 - flatness ratio 0,01/100 (ISO 1101)

Ambient temperature from -20°C to +70°C

Fluid Hydraulic oil as per DIN 51524 .... 535; for other fluids see section �

Recommended viscosity 15 ÷ 100 mm2/s at 40°C (ISO VG 15 ÷ 100)

Fluid contamination class ISO 4406 class 21/19/16 NAS 1638 class 10, in line filters of 25 μm (β25 _>75 recommended)

Fluid temperature -20°C +60°C (standard seals and water glycol) -20°C +80°C (/PE seals)

Flow direction As shown in the symbols of tables � and �

Operating pressure

Rated flow See diagrams Q/Δp at section �

Maximum flow 60 l/min see operating limits at section

Any position for all valves except for type - 070* (without springs) that must be installed with horizontalaxis if operated by impulses

3 MAIN CHARACTERISTICS OF DHI AND DHU DIRECTIONAL VALVES

DHI

DHU

Ports P,A,B: 350 bar; Port T: 120 bar

Ports P,A,B: 350 bar; Port T 210 bar

For versions with proximity swit-ches (/FI/NC and /FI/NO versions)maximum counter pressureallowed on T port is 5 bar

6 DC9 DC12 DC14 DC18 DC24 DC28 DC48 DC110 DC125 DC220 DC

24/50 AC24/60 AC48/50 AC48/60 AC110/50 AC120/60 AC230/50 AC230/60 AC

666or

667

669

33 W

60 VA(3)

COU-6DC/ 80COU-9DC /80COU-12DC /80COU-14DC /80COU-18DC /80COU-24DC /80COU-28DC /80COU-48DC /80COU-110DC /80COU-125DC /80COU-220DC /80

COI-24/50/60AC /80 (1)

COI-48/50/60AC /80 (1)

COI-110/50/60AC /80 (1)COI-120/60AC /80COI-230/50/60AC /80 (1)COI-230/60AC /80

COU-6DC/ 80COU-9DC /80COUR-12DC /10COUR-14DC /10COU-18DC /80COUR-24DC /10COUR-28DC /10COU-48DC /80COUR-110DC /10COU-125DC /80COUR-220DC /10

-

-

-

-

brownlight blue

greenbrownbluered

silversilverblacksilverblack

pink

white

yellowwhite

light bluesilver

gold

blue

40 VA35 VA40 VA35 VA

5 ELECTRIC FEATURES

External supplynominal voltage

± 10%Type of connector

Powerconsumption

(2)

Code of spare coil

DHI DHU

Colour ofcoil label

110/50 AC120/60 AC230/50 AC230/60 AC

COU-110RC /80

COU-230RC /80

COUR-110RC /10

COUR-230RC /10

Voltage code

6 DC9 DC12 DC14 DC18 DC24 DC28 DC48 DC110 DC125 DC220 DC

24/50/60 AC

48/50/60 AC

110/50/60 AC120/60 AC

230/50/60 AC230/60 AC

110RC

230RC

DHI + 30 45 20

DHI + 669 45 –– 80

DHI + E-SD 30 45 50

DHI - DHU

E010

6 Q/ΔP DIAGRAMS based on mineral oil ISO VG 46 at 50°C

Flow rate [l/min]

7 OPERATING LIMITS based on mineral oil ISO VG 46 at 50°C

The diagrams have been obtained with warm solenoids and power supply at lowest value (Vnom - 10%). The curves refer to application with symmetricalflow through the valve (i.e. P→A and B→T). In case of asymmetric flow and if the valves have the devices for controlling the switching times the operatinglimits must be reduced.

Inle

t pre

ssur

e [b

ar]

A

B

C

D

D

Inle

t pre

ssur

e [b

ar]

Flow rate [l/min]

DHUDHI

Val

ve p

ress

ure

dro

p Δ

p [

bar

]

Flow rate [l/min]

D

B

A

C

0 C C C C

0/2, 1, 1/2 A A A A

2, 3 A A C C

2/2, 4, 5, 9* D D D D A

6 A A C A

7 A A A C

8 C C B B

Flow direction

Spool typeP→A P→B A→T B→T P→T

8 SWITCHING TIMES (average values in msec)

Valve Switch-on Switch-on Switch-offAC DC

Test conditions:

- 36 l/min; 150 bar- nominal voltage- 2 bar of counter pressure on port T- mineral oil: ISO VG 46 at 50°C.

The elasticity of the hydraulic circuit and the variationsof the hydraulic characteristics and temperature affectthe response time.

DHI

A

C B

Options -XJ

Coil type COUJ, COURJ

AMP Junior Timer connectorProtection degree IP67

Options -XK

Coil type COURK (not available for COU)Deutsch connectorDT-04-2P maleProtection degree IP67

Options -XS

Coil type COUS,COURS

Lead Wire connectionCable lenght = 180 mm

DHU + –– 45 20

DHU + 669 45 –– 80

DHU + E-SD –– 45 50

DHU-*/L1 –– 60 60

DHU-*/L2 –– 80 80

DHU-*/L3 –– 110 150

DHU

666667

Valve Switch-on Switch-on Switch-offAC DC

666667

DHU

A = Spools 1, 1/2, 8 B = Spools 0, 0/1, 0/2, 1/1C = Spools 3, 3/1D = Spools 4, 4/8, 5, 5/1, 6, 7, 19, 39, 58, 58/1, 09,

90, 91, 93, 94E = Spools 2, 2/2

DHI

A = Spools 0, 0/1, 1, 1/2, 3, 8B = Spools 0/2, 1/1, 6, 7C = Spools 3/1, 4, 4/8, 5, 5/1, 19, 39, 58, 58/1, 09,

90, 91, 93, 94D = Spools 2, 2/2

Note: The above coils are available only for voltage supply 12, 14, 24 and 28 VDC. For the characteristics refer to standard coils features - see sect. �

9 COILS WITH SPECIAL CONNECTORS

Deutsch connector DT-04-2P Lead Wire connectionAMP Junior timer connector

10 DIMENSIONS [mm]

09/13

ISO 4401: 2005Mounting surface: 4401-03-02-0-05Fastening bolts: 4 socket head screws M5x50 class 12.9Tightening torque = 8 NmSeals: 4 OR 108Ports P,A,B,T: Ø = 7.5 mm (max).

P = PRESSURE PORTA, B = USE PORTT = TANK PORTFor the max pressures on ports, see section �

Mass: 1,5 kg Mass: 1,8 kg

Mass: 1,5 kgMass: 1,8 kg

DHI-06

DHU-06

DHI-07

DHU-07

13 MOUNTING SUBPLATES

Model Ports locationGAS Ports

A-B-P-T

Ø Counterbore[mm]

A-B-P-T

Mass[kg]

BA-202

BA-204

BA-302

Ports A, B, P, T underneath;

Ports P, T underneath; ports A, B on lateral side

Ports A, B, P, T underneath

3/8"

3/8"

1/2"

–

25,5

30

1,2

1,8

1,8

The subplates are supplied with 4 fastening bolts M5x50. Also available are multi-station subplates and modular subplates. For further details see table K280.

Overall dimensions refer to valves with connectors type 666

12 ELECTRIC CONNECTORS ACCORDING TO DIN 43650The connectors must be ordered separately

11 OPTION /WP

666, 667 (for AC or DC supply) 669 (for AC supply)

666, 667

1 = Positive2 = Negative

= Coil ground

666 667 110/50 ACAll 24 AC or DC 110/60 AC

voltages 110 AC or DC 230/50 AC220 AC or DC 230/60 AC

669

1,2 = Supply voltage VAC

3 = Coil ground

CONNECTOR WIRING

SUPPLY VOLTAGES

Note: for electronic connectors type E-SD, see tab. K500

DHI

DHU